1020122201201 has 4 divisors (see below), whose sum is σ = 1022691778932. Its totient is φ = 1017552623472.

The previous prime is 1020122201159. The next prime is 1020122201257. The reversal of 1020122201201 is 1021022210201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 893582637025 + 126539564176 = 945295^2 + 355724^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020122201201 - 2³⁴ = 1002942332017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020122201261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1284788270 + ... + 1284789063.

It is an arithmetic number, because the mean of its divisors is an integer number (255672944733).

Almost surely, 2^{1020122201201} is an apocalyptic number.

It is an amenable number.

1020122201201 is a deficient number, since it is larger than the sum of its proper divisors (2569577731).

1020122201201 is an equidigital number, since it uses as much as digits as its factorization.

1020122201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569577730.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1020122201201 its reverse (1021022210201), we get a palindrome (2041144411402).

It can be divided in two parts, 1020 and 122201201, that added together give a palindrome (122202221).

The spelling of 1020122201201 in words is "one trillion, twenty billion, one hundred twenty-two million, two hundred one thousand, two hundred one".